ALERT Workshop 2003
6^th-8^th October 2003, Aussois, France

DAY 1, MONDAY, OCTOBER 6
Geomechanics for transportation engineering
Coordinators: D. Kolymbas and M. Hicks

• Tunnelling-induced displacements and associated damage to structures (G. Viggiani)
• Numerical and physical modelling of tail-gap grouting (M. Mähr)
• The excavation of the Raticosa tunnel (Italy) in highly tectonized clay-shale: comparison between the in-situ measurements and numerical simulation results (D. Boldini)
• Design of liquefaction countermeasures for the foundation of the Preveza-Aktion immersed tunnel (C. Vrettos)
• Two-dimensional FE modelling of ground deformation induced by shield tunnelling: the role of gap geometry (C.l. Tamagnini, C. Miriano and V. Pane)
• Nonlinear modelling of track deterioration (A. Suiker)
• Dynamic effects of wave propagation in high speed lines (A. Suiker)
• Recent advances in the solution of some parameter identification problems relevant to soil dynamics (C. Lai)
• Behaviour of railway ballast under cyclic vertical and lateral loading (V. Bodin, K. Sab and P. Tamagny)
• Model of high-speed train railway track-soil dynamic interaction based on a spatial periodic formulation (H. Chebli, D. Clouteau and A. Modaressi)
• Shallow foundations on natural clays subjected to cyclic loading: effects of constitutive assumptions on FEM simulations (A. Amorosi, G. Elia and A. Chan)
• Dynamic true-to-scale testing on high speed tracks (T. Neidhardt)
• Transition from platforms to stiff structures (M. Pastor and P. Mira)
• Mountain road protection against snow avalanches: modelling of a flexible supporting structure (B. Boutillier and F. Nicot)
• Embankment on soft clay: the role of anisotropy and bonding (M. Karstunen, H. Krenn and S.J. Wheeler)
• Soil characterization for the north transversal road on Grenoble area (J. Monnet, C. Chapeau)
• Risk and variability in geotechnical engineering (M.A. Hicks)
• Modelling the brittle/ductile transitional response of hard/soft rocks: application to an excavation in mudstone formation (J. Vaunat, A. Gens)

DAY 2, TUESDAY, OCTOBER 7
Multi-physics coupling
Coordinators: R. Charlier and Y. Cui

• Modeling of unsaturated water flow in double porosity soils by homogenization (J. Lewandowska, A. Szymkiewicz, M. Vauclin and K. Burzynski)
• Zero-thickness interface elements for hydraulic fracture simulation (J.M. Segura, I. Carol)
• Study of the coupling between progressive damage and permeability of concrete using a discrete model (G. Chatzigeorgiou, V. Picandet, A. Khelidj, G. Pijaudier-Cabot)
• Characterizing in the laboratory permeability changes induced by deviatoric stress in clayey rocks (C. Coll, J. Desrues, P. Bésuelle, G. Viggiani)
• Micro-sorption in bentonite clay Y. Ichikawa (S. Prayongphan, K. Kawamura)
• Effects of adsorbed cations on the compressibility and permeability of a bentonite (P. Delage , Y.J. Cui , D. Marcial)
• Numerical modelling of the thermal-hydraulic-mechanical-chemical behaviour of bentonitic buffer materials (P.J. Cleall, H.R. Thomas, S. Seetharam)
• The effects of the copper solutions on the short term and long term confining properties of a swelling clay (C. Proust *, A. Jullien)
• Modelling the effect of contaminants, salts and organic matter, on the geotechnical properties of natural clays (R.M. Schmitz , N. Boukpeti, F. Collin, J-P. Radu, Ch. Schroeder, J. Thorez, T. Hueckel, R. Charlier)
• A Micromechanical Analysis of Mechanically-Induced Dissolution in Porous Media (E. Lemarchand *, L. Dormieux)
• Cyclic thermo-mechanical behaviour of soils: experimental and numerical approaches (C. Cekerevac, L. Laloui)
• Coupled geochemical-THM analysis of a large scale in situ heating test (A. Gens, L. do N. Guimaraes, S. Olivella, M. Sanchez)
• Hydromechanical behaviour of a bentonite/rock interface: preliminary experimental results (O. Buzzi, J. Hans, M. Boulon, F. Deleruyelle and F. Besnus)
• Effects of temperature and pore pressure in Brazilian, uniaxial and triaxial compressive tests with high porosity chalk (M. V. Madland, R. Risnes)
• Mechanisms involved in chalk-fluid interactions (R. Risnes, M. L. Hjulerv)
• Time-dependent analysis of a multiphase high porosity chalk using 1-D compression test data (G. Priol, V. De Gennaro, P. Delage, Y.-J. Cui, R. Charlier, C. Schroeder)
• Modelling the viscoplastic behaviour of a high porous chalk (F. Collin, E. Vairaktaris, C. Schroeder, R. Charlier)

DAY 3, WEDNESDAY, OCTOBER 8
Post-failure behaviour
Coordinators: J. Sulem and E. Papamichos

• Zero-thickness interface elements for hydraulic fracture simulation (J.M. Segura, I. Carol)
• Study of the coupling between progressive damage and permeability of concrete using a discrete model (G. Chatzigeorgiou, V. Picandet, A. Khelidj, G. Pijaudier-Cabot)
• Characterizing in the laboratory permeability changes induced by deviatoric stress in clayey rocks (C. Coll, J. Desrues, P. Bésuelle, G. Viggiani )
• Micro-sorption in bentonite clay (Y. Ichikawa, S. Prayongphan, K. Kawamura)
• Effects of adsorbed cations on the compressibility and permeability of a bentonite (P. Delage , Y.J. Cui , D. Marcial)
• Numerical modelling of the thermal-hydraulic-mechanical-chemical behaviour of bentonitic buffer materials (P.J. Cleall, H.R. Thomas, S. Seetharam)
• The effects of the copper solutions on the short term and long term confining properties of a swelling clay (C. Proust *, A. Jullien)
• Modelling the effect of contaminants, salts and organic matter, on the geotechnical properties of natural clays (R.M. Schmitz , N. Boukpeti, F. Collin, J-P. Radu, Ch. Schroeder, J. Thorez, T. Hueckel, R. Charlier)
• A Micromechanical Analysis of Mechanically-Induced Dissolution in Porous Media (E. Lemarchand , L. Dormieux)
• Cyclic thermo-mechanical behaviour of soils: experimental and numerical approaches (C. Cekerevac and L. Laloui )
• Coupled geochemical-THM analysis of a large scale in situ heating test (A. Gens, L. do N. Guimaraes, S. Olivella, M. Sanchez)
• Hydromechanical behaviour of a bentonite/rock interface: preliminary experimental results (O. Buzzi, J. Hans, M. Boulon, F. Deleruyelle, F. Besnus)
• Effects of temperature and pore pressure in Brazilian, uniaxial and triaxial compressive tests with high porosity chalk (M. V. Madland and R. Risnes)
• Mechanisms involved in chalk-fluid interactions (R. Risnes and M. L. Hjulerv)
• Time-dependent analysis of a multiphase high porosity chalk using 1-D compression test data (G. Priol, V. De Gennaro, P. Delage, Y.-J. Cui, R. Charlier and C. Schroeder)
• Modelling the viscoplastic behaviour of a high porous chalk (F. Collin, E. Vairaktaris, C. Schroeder and R. Charlier)
• Shear band propagation in soft rocks: numerical simulation of experimental results (A. Allodi, CM. Castelli, S. Marello and C. Scavia)
• Numerical modelling of fast slope movements (M. Pastor)
• Implementation of a new finite element for local second gradient models, application to the post localization (P. Bésuelle, R. Chambon, D.Caillerie and R. Charlier)
• An examination of shear bands by discrete particle simulations (C. Thornton)